US1412952A - Loader - Google Patents

Description

W. E. MAYHEW.

LOADER, APPLICATION FILED SEPT. 14, 1920.

INVENToR.

2 SHEETS-SHEET l.

Patented Apr. 18, 1922.

32 EMaQ/Iww BY Q @Nom/'EY W. E. MAYHEW. LOADER.

APPLICATION FILED SEPT. I4. 1920.

1,41 2,952. v Patented Apr. 18, 1922.

2 SHEETS-SHEET 2.

'lll/11111111 IN VEN TOR.

BY Q) J0 ATTORNEY To all 'whom it may concern.'

les ra WILLIAM E. T/IAYHEW, OF STGCKTON, CALIFORNIA.

LOADER.

1,412,952, Specification of Letters Patent, fafgnted Api. 18, 1922.

Application led September 14, 1920. Serial No. 410,187.

Be it known that I, WILLIAM I5. Mariinw, a citizen of the United States, residing at Stockton, county of San Joaquin, Sta-te of California, have invented certain new and useful Improvements in Loaders; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in loading devices, being particularly adapted and intended to be used for the vpurpose of loading hay into wagons, as said loader and wagon move together across a field over which the shocks of hay are scattered at more or less regular intervals.

Theprincipal object of the invention is to provide a device of this character by means of which the hay etc. may be raised from the-ground and deposited in a wagon alongside, without halting the progress .of either the vloader or wagomand which requires only the services of a single operator to manipulate the device. K

Another object is to provide a device which will work equally well on a side hill or on a grade of any kind.

I have also arranged the working parts of the device so that they may be operated by engine power. or by power derived from the rotation of the supporting wheels of the loader as it moves along.

The loader can also be operated while stationary, by means of a draft horse or otherwise.

I particularly believe to be novel the use of a stationary track projecting beyond one side of thev device. in connection with the carrier and the loading fork suspended from the track. This feature does away with the use of a swinging boom as ordinarily employed, and enables the loading operations to be considerably accelerated.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of ref-1 Vforward from the sides. l right angles to the frame 9 and fixed thereerence indicate corresponding parts on the Fig. 5 is a fragmentary section taken on a line 5 5 of Fig. 4l, showing' a catch meinber. Fig. 6 is an enlarged view of the carriage trip or stop.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 denotes a suitably formed horizontal frame supported at its forward. end by wheels 2, and at `its rear end by a tiller wheel 3.

At the forward end of the frame and mounted between the wheels for limited vertical movement in guides 4': on the frame.y is a vertical frame 5 havinghorizontal prongs 6 projectingforward, the-outer prongs having brace bars 7 extending up to the frame at an angle to the wheels, this frame and prongs being a` rigid unit and forming a shoe or support for the reception of the fork or grab 8 which comprises a normally vertical frame 9, having long prongs or teeth l0 projecting forward from the lower side thereof and shorter prongs 11 projecting Rigid bars 12 at to. project convergingly forward a certain distance. their outer ends being connected by a piece 13 containing a spring pressed catch 14 of any ordinary type which is adapted to normally engage a transverse bar 15 `fixed cn the outer ends of a pair of arms 16 pivoted to the upper endsl of the frame 9`v the bar and arms together forming a yoke. Projecting up from the frame 1, being pivoted thereto as at 17 and being in verticalalinement with the shoe-frame 5 are beams 18, connected together at suitable intervals by light and flexible transverse bars 19, to which are fixed vertical guide or rest bars 20 against which the fork-frame bears when raised. I

Pivotally mounted to the beams 18 at the top thereof and cir-tending lengthwise of the frame 1 and in parallel relation are beains 21, projecting over the fork 8, there being a spaced and connected pair et such beams to each of the beams 18.

Slidably mounted to and between each pair of beams 21 forward ot the Vbeams 18 are blocks 22 arranged to be positioned and heldat predetermined points. These blocks support a transverse t-rack 28 hung thereunder by means o1 iexible link connections 24, this track extending beyond the wheelk -rier and around a sheave 8() on the outer end of the track. Fromthere 'the cable Vpasses over sheaves 31 mounted in the blocks 22 and is led thence over other suitzfibly positioned sheaves 82 to a drum 33 mounted on the frame 1.

In operation, a pull on the cable raises the fork to a point adjacent the carrier, and a further pull on the cable throws the trip and causes vthe carrier and fork to move along the vtrack toward the outei end'thereof, softhat the fork with its load is above the Wagon positioned alongside `the loader.

T he load lis then dumped by releasing' the trip or catch 111, which is done by means oiE a rope 84 which leads over a sheave mounted on the adjacent block 22 to a point convenient to the operator, who has his stand on a platform 86 on lthe `traino 1 near the tiller wheel. To return the i'ork to its loadingv position in the shoe, a rope 3'1" .is provided which extends Afrom a winch 88 over suitable sheaves 39 to the pulley block 27.

Thus by pulling,` on the rope 37 when the carrier and fork are in their upper andv outermost position, and at the same time allowlwhich is very .possibly swinging, is moved transversely, it will Sbe engaged. and -inoved into position without catching..

To hold the arm 15 from swinging.around when the 'fork is moved beyond the plane 'of ,-thebars 20, auxiliary guide bars 11 nronections to the rear end ot the beams 21,

said links bein v I iivotedV at both ends.

rhus by altering` the point oi connection of the beams 4-2 with the member it, `the setting;- ot the beams 18 and l21Y is altered accordingly, Vthe front ends. oi' the latter sloping` either downwardly or upwardly as may be desired, while at the sainetime the i'lexible mounting` ot' the track permits it Vto always hang in a. vertical plane.

Since the beams l8'and 21 and 12 areJ jractically independent units, tlie'setting ofl `the one may be altered without disturb-V ing the setting of the other, so that no mattei' what the angle of setting ofthe floader a whole may be relative to a true horizontal plane,I the track 23 may be maintained in true horizontal alinement.

The adjustable features just described` therefore permit the device to 'be efficiently used in side-hill work and on longitudinal ,gradients as well. ,l A

ifilhen the 'fork is lowered into position into the shoe, the bar '15' andV arms 16 naturally hang vertically, the catch'holdino' them to the trame 12 having' been releaset when the fork was dumped. To reposition this bar 15 so Vthat the catch 141- will be engaged prior to a lifting movement of ythe cable 28, l provide a pair of arins pivoted to the traine 1 behind the 'fork and normally projecting' upward sufficiently to engage the bar 5; connection with the armsl and 'has a cable l-T attached `thereto and extending to a free end adjacent the operator, this' vcable and arm being' arranged to throw 'the arms '115 and consequently the bar 15, downward and forward. so Ythatf'the catch 14. engages the bar io, when the cable 17 is pulled. Y

To rotatetho cable drum '38., il preferably provide an engine t8 mounted on the `frame A1 and operatively connected withsaid drum,

there being a clutch 419 interposed therebetween so that the engine may be disconnected from said druml at will. y

li" an engine is -not desired, power to -ro- -tate the drum may ibe taken from one of the wheels 2 by means of a chain drive as indicated-at 50, which drive would of course have a suitable clutch. interposedto break Another arm L,t6 is mounted inAY the driving connection at will. Cir an auxiliary drum 5l may be provided, which would be operatively connected with the drum f, the cable on this drum 5l being unwonnd by being' pulled by a draft animal attached at its outer'end, while the cable 28 is being wound on the drum rlhe winch 38 may also be connected. to be driven by the engine if desired, though l have shown it as being hand-turned.

In the operation of the device, the loader is moved forward eitherl by a tractor or by draft animals, positioned at the rear. The device is steered while moving so that a shock of hay is .forced into the fork.' When the latter is loaded, the arms Ll5 are manipulated to cause the bar 15 to lock with the fork-frame 13, and the cable 28 is 'then wound on the drum 33, raising the fork up and linally over beyond the loader, the point of pull on the fork being positioned so that the latter is held with its open side substantially facing upward.

When the catch 14 is released however, the weight of the load causes the fork to tip, and the load is instantly dumped. The operations then necessary to return the fork to its loading position have been already described.

When it is desired to transport the loader from place to place without operating the same, the shoe is raised clear of the ground by means of a lever 52 pivote'd to the frame l and extending from the rear of the shoe to a point adjacent the operator.

From the foregoing description it will be readily seen that I have producedsuch a device as substantially fulfills the objects of the invention as set forth herein.

lVhile this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:-

1. A loader comprising a wheel-mounted frame, a pronged shoe mounted at the forward end of the frame and resting adjacent the ground, a. fork adapted to rest in the shoe t0 be loaded, and means for then raising and moving the fork to one side to dump the same.

2. In a loading device. a. loading fork adapted to be raised from the ground. such fork comprising a frame structure open on its forward side when on the ground.. a yoke pivoted at the upper rear ends of said structure, the outer end of the yoke being connected to a raising means, a releasable catch in the frame structure adapted to automatically engage and hold the yoke when the latter is moved to a horizontal position, and means on the loader and actuated therefrom for moving said yoke to a "position to be engaged by the catch.

3. A loader comprising` a wheel supported frame, vertical beams at the front end of the frame, a transverse track extending beyond one side of the frame and supported from the beams, said track having a carrier mounted thereon` and means for adjusting the beams to maintain the horizontal position of the track irrespective 0f the setting of the loader.

4f. A loader comprising a wheel supported frame, vertical beams at the front end of the frame, longitudinal and. horizontal beams pivotally mounted at the upper ends of the Vvertical beams and extending forward therebeyond. atransverse track flexibly suspended from the longitudinal beams, and independent means for each such beam for altering the horizontal alinement thereof, whereby the horizontal transverse alinement of the track is altered.

5. A loader comprising a wheel supported frame, vertical beams at the front end of the frame, longitudinal and horizontal beams pivotally mounted at the upper end of the vertical beams and extending forward therebeyond, a transverse track flexibly suspended from the longitudinal beams, brace beams pivotally mounted to the vertical beams and adjustably secured to the frame and links pivotally connected to the brace beams and to the longitudinal beams.

6. A loader comprising a wheel supported frame, a pronged shoe at the forward. end positioned adjacent, the ground, a vertical framework projecting upwardly from the frame at the rear of the shoe, a transverse track supported by the vertical frame and extending therebeyond on one side, a carrier on the track. a loading fork connected to the carrier and adapted to rest in the shoe when being loaded., and a common means for raising the fork to a point adjacent the carrier and for then moving the carrier and fork to the outer end of the track.

7. In a loading device, a loading fork adapted to be raised from the ground, such fork comprising a frame structure open at its forward side when on the ground, a yoke pivoted at the upper rear ends of said structure, the outer end of the yoke being connected to a raising means, a releasable catch in the frame structure adapted to automatically engage and hold the yoke when the latter moved to a horizontal position and a pair 0f arms pivoted in common and positioned in the vertical plane of the arms of the yoke and behind the same, and adapted to be moved to bear against and move the yoke into the path of the catch when the fork is on the ground.

8. In e loading device a loedingforkhaving e normally vertical frame portion7 a vertical framework on thelloader behind the fork, a transverse track mounted ontop of 5 the framework andprojecting-thereloeyond, a carriage movable along the track and-to which the fork is connected, means for raising the fork and then moving `he carriage to one'slde, vertical guides onrthey framework against which the'ork-frame bears when be-Y WILLnii/i n. Mnynnw.

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